import java.util.Scanner;

public class Zxf13 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("输入一个数");
        int a = in.nextInt();
        if(a%7==0&&a!=0){
            System.out.println("是否为7的倍数：是");
        }else {
            System.out.println("是否为7的倍数：否");
        }
    }
}



